双色球红蓝走势图

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石墨棒有哪些基本信息

发布时间:2019-08-15 10:10:31 浏览:160次

石墨棒常用于高温真空炉的电热体,运用温度可高达3000℃,在高温下易于氧化,除真空外,只能在中性氛围或复原性氛围中运用。石墨棒双色球红蓝走势图的热收缩系数较小,热导率较大,电阻系数为(8~13)×10-6Ω·m,加工性较SiC、MoSi2棒好,耐高温,耐极冷极热性好,价钱较廉价。

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石墨棒有哪些基本信息

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